Tried Syndra 1v1 with my brother on the PBE
At first I thought something was fucked up because I severely outfarmed him and had Deathcap, two rings, Sorc shoes, and Kages vs his Sorc and Haunting Guise, but he still nuked me 1v1. Despite harassing him with Q and W I'd just get one shot by his ult. At first I thought it might be haunting guise being op, but later we figured it was because he was using E while I only saved it for the utility. Turns out he would just ult me then blast all the spawned balls with E for ridiculous damage.
So yeah Syndra is weird. Q is pretty standard as far as AP Qs go, cast it and hope it hits. W can do silly things like steal blue and run around with it but it's use is mostly standard after a Q. It's kinda slow though so it's hard to hit with. Her E is probably her make or break skill because of how it either does nothing or like instant nuke... if you get lucky. Her ult nukes and sets up orbs which then can be blasted by E for batshit insane damage. You can get a max of 6 balls and then each blasted ball does 250 + 0.5 AP for a total of 3.9 AP holy shit gtfo nunu. Problem is E is really hard to control and pretty much shoots shit out like a shotgun. It shoots them straight forward but it really feels kinda random. I mean it's hard enough sometime to hit with a blitz grab, but with this you also have to set up first, then be in a straight line between the ball, you, and the enemy, so the only way to really get it is with W slow while they run away, or after an ult.
I'm trying to figure out her combo, but standardly seems something like Q, W, Q, E the two orbs for a stun, then Q or ult. Q's cooldown is the same as Ryze's so you can spam that shit. However alternatively is my brother's poverty combo which was just ult, E, then Q, W to finish off, which could be pulled off much faster for an instant burst.
Or maybe it was just haunting guise op. Also her AP ratios kinda suck. Her total AP ratio is insane, but each individual move's ap ratio isn't that good, and it's hard to land everything since her only stun is her freaking shotgun E.